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Complements to the longitudinal librations of an elastic 3-layer Titan on a non-Keplerian orbit

Published online by Cambridge University Press:  05 January 2015

Andy Richard  and
Nicolas Rambaux
Andy Richard
Affiliation:
IMCCE, Observatoire de Paris, UMR 8028, CNRS, UPMC 77 avenue Denfert-Rochereau, 75014 Paris, France email: arichard@imcce.fr Université Pierre et Marie Curie, UPMC - Paris 06, 4 Place Jussieu, 75005 Paris email: Nicolas.Rambaux@imcce.fr
Nicolas Rambaux
Affiliation:
IMCCE, Observatoire de Paris, UMR 8028, CNRS, UPMC 77 avenue Denfert-Rochereau, 75014 Paris, France email: arichard@imcce.fr Université Pierre et Marie Curie, UPMC - Paris 06, 4 Place Jussieu, 75005 Paris email: Nicolas.Rambaux@imcce.fr
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Abstract

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Titan longitudinal librations are dependent on the satellite internal structure and the elastic behavior of the surface. The elastic deformation of the surface is related to the perturbing potential through the Love theory. In a previous paper, we described the deformation as a response to the tidal potential exerted by Saturn at orbital frequency. Here we improve the tidal deformation reponse by including the effect of the libration angle and the orbital perturbations. We then provide the libration amplitudes associated with the rotational model of a tidally deformed three-layer Titan evolving on a non-Keplerian orbit.

Keywords

planets and satellites: individual (Titan)librationsrotationelasticityperturbations

Information

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Issue S310: Complex Planetary Systems , July 2014 , pp. 21 - 24
Copyright
Copyright © International Astronomical Union 2014 

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